1746-nr4 Manual New! Site

The manual is emphatic: Use Belden 9533 or equivalent shielded cable. Connect the shield drain wire to terminal 14 or 15 . Do not ground the shield at the RTD sensor end. This prevents ground loops that destroy measurement stability.

: Individual green LEDs that flash to indicate errors (under-range, over-range, open-circuit, or short-circuit). Rockwell Automation Configuration & Programming SLC 500 RTD/Resistance Input Module - Rockwell Automation 1746-nr4 manual

A: That indicates an open input. Check your wiring against the terminal diagram. The 1746-NR4 outputs full scale (overrange) for broken wires as a diagnostic aid. The manual is emphatic: Use Belden 9533 or

Unlike newer modules that auto-detect, the 1746-NR4 requires you to set the RTD type for each channel. The manual provides a truth table. For example: 1746-nr4 manual